18871242

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{241939}}^1$

素因数の和:241957

約数の個数: 16

約数和(自身を含む): 40645920

約数和(自身を除く): 21774678

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 241939, 483878, 725817, 1451634, 3145207, 6290414, 9435621, 18871242]

約数ペア:

[(1, 18871242), (2, 9435621), (3, 6290414), (6, 3145207), (13, 1451634), (26, 725817), (39, 483878), (78, 241939)]